1745026109 has 2 divisors, whose sum is σ = 1745026110. Its totient is φ = 1745026108.

The previous prime is 1745026099. The next prime is 1745026141. The reversal of 1745026109 is 9016205471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1537032025 + 207994084 = 39205^2 + 14422^2 .

It is a cyclic number.

It is not a de Polignac number, because 1745026109 - 2⁴ = 1745026093 is a prime.

It is a super-2 number, since 2×1745026109² = 6090232242183359762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1745026159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 872513054 + 872513055.

It is an arithmetic number, because the mean of its divisors is an integer number (872513055).

Almost surely, 2^1745026109 is an apocalyptic number.

It is an amenable number.

1745026109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1745026109 is an equidigital number, since it uses as much as digits as its factorization.

1745026109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1745026109 is about 41773.5096562403. The cubic root of 1745026109 is about 1203.9283549252.

The spelling of 1745026109 in words is "one billion, seven hundred forty-five million, twenty-six thousand, one hundred nine".